[Kenwood] TS-600 question

[Mike Steussy - AE4R]

Ahoy!  From an estate, I just acquired a grubby and forlorn looking 
TS-600 6 meter all-mode transceiver, with microphone, but without 
manuals.  I brought it home and turned it on.  It appears to receiver 
normally, but will not give any evidence of being able to transmit.  I 
noticed there's a 9 pin miniature socket on the rear panel for a VOX 
accessory that didn't come with the radio.  Nothing is plugged into this 
socket.  Remembering how the TS-520 series has a similar socket for the 
remote VFO and won't work unless a VFO or a plug with a jumper is in 
that socket, I wonder if the the TS-600 is the same.  I plan to order 
the manuals, but in the meantime, can anyone advise me on what I should 
do to get the rig at least try to transmit.

Also, if owners and former owners have any advice about repairing and/or 
using this little beauty, please advise.

Thanks and 73,
Mike Steussy  AE4R